Boulder

Boulder is an environment block in the Mindustry system. Environment blocks are static, non-placeable terrain entities that occupy tiles and act as map obstacles and cover; they cannot be built by players, do not consume power or process items, and are typically removed or altered only by weapons, explosions, or special building interactions. As an environment block, Boulder serves to shape map geometry and unit navigation, influencing base placement and pathing rather than participating directly in production or logistics.